23
V
Vanadium

Vanadium

Element 23 • Transition Metal
Atomic Mass 50.941500
Electron Config Unknown
Group/Period 5/4

Overview

ANALYZED
Vanadium is the secret ingredient that transforms ordinary steel into super-steel! This silvery-gray transition metal might be relatively unknown, but it's absolutely essential for modern infrastructure. Just adding 0.1% Vanadium to steel increases its strength by up to 100% while maintaining flexibility - it's like adding superpowers to metal! Discovered in 1801 by Spanish-Mexican scientist Andrés Manuel del Río, Vanadium has one of the most colorful chemistry stories in the periodic table. Del Río initially called it "erythronium" (from Greek for red) because its compounds turned red when heated. However, he was convinced by other chemists that he had actually discovered chromium, so he withdrew his claim. Thirty years later in 1831, Swedish chemist Nils Gabriel Sefström rediscovered the element and named it Vanadium after Vanadis, the Norse goddess of beauty, because of its beautiful multicolored compounds. What makes Vanadium absolutely fascinating is its incredible versatility in forming compounds. It can exist in oxidation states from -1 to +5, creating a rainbow of colors: purple (V²⁺), green (V³⁺), blue (V⁴⁺), and yellow (V⁵⁺). This makes Vanadium compounds useful as catalysts in chemical reactions and as pigments for ceramics and glass. Vanadium has some remarkable biological properties too. It's essential for some marine organisms like sea squirts, which concentrate Vanadium in their blood at levels 10 million times higher than seawater! Some studies suggest Vanadium might help regulate blood sugar in humans, leading to research into diabetes treatments. The element also shows promise in energy storage. Vanadium redox flow batteries can store massive amounts of energy for renewable energy systems, lasting for over 20 years with minimal degradation - perfect for storing solar and wind power!

Physical Properties

MEASURED
Atomic Mass
50.941500 u
Melting Point
2183.00 °C
Boiling Point
3680.00 °C
Ionization Energy
6.88 kJ/mol

Special Properties

CLASSIFIED
STABLE Generally safe to handle with standard precautions

Applications

CATALOGUED

Vanadium: The Steel Strengthener

Vanadium transforms ordinary steel into extraordinary alloys, enabling everything from Formula 1 race cars to nuclear reactor vessels. This transition metal's unique ability to strengthen steel at minimal concentrations makes it indispensable for modern infrastructure and advanced engineering applications.

Steel Alloy Revolution

High-strength low-alloy (HSLA) steels achieve remarkable properties through Vanadium additions as small as 0.01-0.15%. Vanadium forms carbides and nitrides that pin grain boundaries, preventing dislocation movement and creating steels with yield strengths exceeding 700 MPa while maintaining excellent weldability. Automotive applications include chassis components, suspension systems, and safety cage structures where weight reduction and crash performance are critical.

Tool Steel Excellence

High-speed tool steels containing 1-5% Vanadium maintain cutting edge sharpness at red heat temperatures (600°C), enabling high-speed machining operations impossible with conventional steels. Vanadium carbides (VC) create the hardest carbides in tool steels, providing exceptional wear resistance for cutting tools, dies, and manufacturing equipment.

Energy Storage Technology

Vanadium redox flow batteries (VRFBs) enable large-scale energy storage for renewable power integration. These systems use Vanadium's four stable oxidation states (V²⁺, V³⁺, VO²⁺, VO₂⁺) to store energy in liquid electrolytes, providing 10,000+ charge cycles with minimal degradation. Major installations in Japan, Australia, and China demonstrate VRFB technology for grid-scale wind and solar energy storage.

Chemical Catalysis

Vanadium pentoxide (V₂O₅) catalyzes sulfuric acid production through the contact process, enabling manufacture of this essential industrial chemical. The catalyst operates at 400-500°C, converting sulfur dioxide to sulfur trioxide with 99% efficiency. Selective catalytic reduction (SCR) systems use Vanadium-based catalysts to reduce nitrogen oxide emissions from power plants and diesel engines.

Aerospace Applications

Titanium-Vanadium alloys like Ti-6Al-4V contain 4% Vanadium to enhance strength and workability for aircraft structural components. Jet engine components utilize Vanadium's ability to maintain strength at elevated temperatures while resisting oxidation and thermal cycling fatigue.

Common Uses

INDEXED

Vanadium: Strength Behind the Scenes

  • Automotive Industry
    • High-strength steel chassis and body components
    • Suspension systems and safety structures
    • Engine components and transmission parts
    • Racing car frames and roll cages
  • Construction & Infrastructure
    • High-rise building structural steel
    • Bridge components and heavy construction
    • Pipeline steel for oil and gas transmission
    • Earthquake-resistant building frameworks
  • Manufacturing Tools
    • High-speed cutting tools and drill bits
    • Industrial dies and forming equipment
    • Precision machine tool components
    • Wear-resistant manufacturing equipment
  • Energy Systems
    • Grid-scale battery storage systems
    • Nuclear reactor structural components
    • Power plant emission control catalysts
    • Renewable energy storage installations
  • Aerospace Applications
    • Aircraft structural components and engines
    • Spacecraft and satellite structural elements
    • Military aircraft and missile components
    • High-temperature engine applications
  • Chemical Industry
    • Sulfuric acid production catalysts
    • Petroleum refining process catalysts
    • Specialty chemical manufacturing
    • Industrial process equipment

Natural Occurrence

SURVEYED

Vanadium: Forged in Stellar Cores

Vanadium's cosmic creation occurs through silicon burning processes in massive stars, where temperatures exceed 3 billion Kelvin enable nuclear reactions that build elements heavier than iron. Neutron capture events during supernova explosions further contribute to Vanadium isotope formation, dispersing this transition metal throughout the universe as stellar debris forms new planetary systems.

Terrestrial Distribution

Earth's crust contains approximately 120 parts per million Vanadium, ranking it 22nd in elemental abundance. This moderate concentration reflects Vanadium's geochemical behavior, where it substitutes for iron and aluminum in rock-forming minerals rather than forming distinct Vanadium minerals in most geological environments.

Primary Vanadium Sources

Magnetite iron ores provide 71% of global Vanadium production, particularly from layered mafic intrusions where Vanadium concentrates through magmatic processes. South Africa's Bushveld Complex contains the world's largest Vanadium resources, with magnetite layers containing 1-2% V₂O₅ formed through fractional crystallization of Vanadium-rich magmas.

Petroleum and oil sands represent unconventional Vanadium sources, where organic compounds concentrated Vanadium from ancient seawater. Venezuelan heavy oils contain up to 1,400 ppm Vanadium, recovered as Vanadium pentoxide from petroleum processing residues.

Unique Mineral Occurrences

Carnotite (K₂(UO₂)₂(VO₄)₂·3H₂O) occurs in sandstone uranium deposits of the Colorado Plateau, providing both uranium and Vanadium through solution mining operations. Vanadinite (Pb₅(VO₄)₃Cl) forms spectacular red crystals in oxidized lead deposits but contributes minimally to commercial Vanadium production.

Global Resources and Production

China dominates Vanadium production (57% globally) from steel slag processing and stone coal deposits unique to Shaanxi and Hunan provinces. Russia (17%) and South Africa (16%) follow, with South Africa holding 35% of global Vanadium reserves in the Bushveld Complex.

Secondary Recovery

Steel production generates Vanadium-rich slags and fly ash containing 15-25% V₂O₅, recovered through roasting and leaching processes. This secondary production accounts for 22% of global Vanadium supply, demonstrating effective resource recycling from industrial waste streams.

Discovery

ARCHIVED
1801

The Element Found Twice

Vanadium's discovery involved multiple researchers, false starts, and eventual confirmation through advanced analytical techniques, illustrating the challenges of identifying new elements in complex mineral matrices.

Del Río's Mexican Discovery

Andrés Manuel del Río (1764-1849), a Spanish-Mexican mineralogist, made the first vanadium discovery in 1801 while analyzing lead ores from Zimapán, Mexico. Del Río observed that his mineral samples produced colorful solutions - red, yellow, green, and blue - depending on chemical treatment conditions.

Del Río initially named his discovery "panchromium" (meaning "all colors") due to its multicolored compounds. Later, noticing the red color of certain solutions, he renamed it "erythronium" (from Greek "erythros" meaning red).

The Tragic Doubt

When del Río sent samples to European chemists for confirmation, they incorrectly identified his element as impure chromium. This misidentification caused del Río to doubt his own discovery, and he sadly retracted his claim. The scientific community accepted this incorrect assessment, robbing del Río of deserved recognition for 30 years.

Sefström's Rediscovery

Nils Gabriel Sefström (1787-1845), a Swedish chemist working at the Falun iron works, rediscovered vanadium in 1830 while analyzing iron ore slags. His systematic chemical analysis revealed an unknown element that produced the same colorful compounds del Río had observed decades earlier.

Sefström named the element "vanadium" after Vanadis, the Norse goddess of beauty, love, and fertility (also known as Freyja). This name reflected the beautiful colors of vanadium compounds, from deep reds to brilliant yellows and greens.

Historical Justice

When Sefström's work became known, del Río's priority was finally recognized. The scientific community acknowledged that del Río had indeed discovered vanadium first, though Sefström's name remained standard. This recognition restored del Río's place in chemical history and highlighted the importance of thorough analytical confirmation.

Pure Metal Isolation

Henry Roscoe produced the first pure vanadium metal in 1867 through hydrogen reduction of vanadium dichloride, though his product contained significant impurities. John Wesley Marden and Malcolm Rich achieved high-purity vanadium metal in 1927 using calcium reduction of vanadium pentoxide, enabling systematic study of vanadium's remarkable properties.

Safety Information

CRITICAL

Vanadium Safety: Moderate Hazard Awareness

Vanadium compounds exhibit moderate

toxicity requiring appropriate safety measures, particularly for dust inhalation and certain Vanadium salts.
Understanding exposure routes and implementing proper controls ensures safe handling in industrial applications.

Health Effects

Vanadium pentoxide (V₂O₅) represents the primary occupational concern, causing respiratory irritation, coughing, and potential lung damage with prolonged exposure. Acute symptoms include green tongue discoloration, metallic taste, and gastrointestinal irritation. Chronic exposure may lead to bronchitis and reduced lung function, though effects are generally reversible with exposure cessation.

Occupational Exposure Limits

  • OSHA PEL: 0.5 mg/m³ (8-hour TWA) for Vanadium pentoxide dust and fume
  • NIOSH REL: 1 mg/m³ (15-minute ceiling) for Vanadium compounds
  • ACGIH TLV: 0.05 mg/m³ (8-hour TWA) for Vanadium pentoxide
  • Ferrovanadium dust: 1 mg/m³ (respirable fraction)

Routes of Exposure

Inhalation poses the greatest risk during steel production, catalyst handling, and Vanadium processing operations. Dermal contact with Vanadium compounds can cause skin irritation and potential absorption. Ingestion risks occur through contaminated food or poor hygiene practices in workplace settings.

Personal Protective Equipment

  • Respiratory Protection: N95 minimum for dust; P100 for fine particles; supplied-air for high concentrations
  • Skin Protection: Nitrile gloves resistant to Vanadium compounds; protective clothing for dust exposure
  • Eye Protection: Safety glasses with side shields; goggles for grinding or crushing operations
  • Hygiene Facilities: Emergency eyewash stations; separate change areas; shower facilities recommended

Engineering Controls

Local exhaust ventilation at dust generation points effectively controls airborne Vanadium exposure. Enclosed processes for Vanadium compound handling minimize worker contact. Wet suppression during crushing and grinding operations reduces dust generation significantly.

Emergency Procedures

Inhalation: Remove from exposure immediately; provide fresh air and oxygen if needed; seek medical attention for respiratory symptoms. Skin contact: Flush with water for 15 minutes; remove contaminated clothing; seek medical attention for persistent irritation. Eye contact: Irrigate with clean water for 15 minutes; seek immediate medical attention. Ingestion: Rinse mouth with water; do not induce vomiting; seek medical attention immediately.

Knowledge Database

Essential information about Vanadium (V)

Vanadium is unique due to its atomic number of 23 and belongs to the Transition Metal category. With an atomic mass of 50.941500, it exhibits distinctive properties that make it valuable for various applications.

Vanadium has several important physical properties:

Melting Point: 2183.00 K (1910°C)

Boiling Point: 3680.00 K (3407°C)

State at Room Temperature: solid

Atomic Radius: 134 pm

Vanadium has various important applications in modern technology and industry:

Vanadium: The Steel Strengthener

Vanadium transforms ordinary steel into extraordinary alloys, enabling everything from Formula 1 race cars to nuclear reactor vessels. This transition metal's unique ability to strengthen steel at minimal concentrations makes it indispensable for modern infrastructure and advanced engineering applications.

Steel Alloy Revolution

High-strength low-alloy (HSLA) steels achieve remarkable properties through Vanadium additions as small as 0.01-0.15%. Vanadium forms carbides and nitrides that pin grain boundaries, preventing dislocation movement and creating steels with yield strengths exceeding 700 MPa while maintaining excellent weldability. Automotive applications include chassis components, suspension systems, and safety cage structures where weight reduction and crash performance are critical.

Tool Steel Excellence

High-speed tool steels containing 1-5% Vanadium maintain cutting edge sharpness at red heat temperatures (600°C), enabling high-speed machining operations impossible with conventional steels. Vanadium carbides (VC) create the hardest carbides in tool steels, providing exceptional wear resistance for cutting tools, dies, and manufacturing equipment.

Energy Storage Technology

Vanadium redox flow batteries (VRFBs) enable large-scale energy storage for renewable power integration. These systems use Vanadium's four stable oxidation states (V²⁺, V³⁺, VO²⁺, VO₂⁺) to store energy in liquid electrolytes, providing 10,000+ charge cycles with minimal degradation. Major installations in Japan, Australia, and China demonstrate VRFB technology for grid-scale wind and solar energy storage.

Chemical Catalysis

Vanadium pentoxide (V₂O₅) catalyzes sulfuric acid production through the contact process, enabling manufacture of this essential industrial chemical. The catalyst operates at 400-500°C, converting sulfur dioxide to sulfur trioxide with 99% efficiency. Selective catalytic reduction (SCR) systems use Vanadium-based catalysts to reduce nitrogen oxide emissions from power plants and diesel engines.

Aerospace Applications

Titanium-Vanadium alloys like Ti-6Al-4V contain 4% Vanadium to enhance strength and workability for aircraft structural components. Jet engine components utilize Vanadium's ability to maintain strength at elevated temperatures while resisting oxidation and thermal cycling fatigue.

1801

The Element Found Twice

Vanadium's discovery involved multiple researchers, false starts, and eventual confirmation through advanced analytical techniques, illustrating the challenges of identifying new elements in complex mineral matrices.

Del Río's Mexican Discovery

Andrés Manuel del Río (1764-1849), a Spanish-Mexican mineralogist, made the first vanadium discovery in 1801 while analyzing lead ores from Zimapán, Mexico. Del Río observed that his mineral samples produced colorful solutions - red, yellow, green, and blue - depending on chemical treatment conditions.

Del Río initially named his discovery "panchromium" (meaning "all colors") due to its multicolored compounds. Later, noticing the red color of certain solutions, he renamed it "erythronium" (from Greek "erythros" meaning red).

The Tragic Doubt

When del Río sent samples to European chemists for confirmation, they incorrectly identified his element as impure chromium. This misidentification caused del Río to doubt his own discovery, and he sadly retracted his claim. The scientific community accepted this incorrect assessment, robbing del Río of deserved recognition for 30 years.

Sefström's Rediscovery

Nils Gabriel Sefström (1787-1845), a Swedish chemist working at the Falun iron works, rediscovered vanadium in 1830 while analyzing iron ore slags. His systematic chemical analysis revealed an unknown element that produced the same colorful compounds del Río had observed decades earlier.

Sefström named the element "vanadium" after Vanadis, the Norse goddess of beauty, love, and fertility (also known as Freyja). This name reflected the beautiful colors of vanadium compounds, from deep reds to brilliant yellows and greens.

Historical Justice

When Sefström's work became known, del Río's priority was finally recognized. The scientific community acknowledged that del Río had indeed discovered vanadium first, though Sefström's name remained standard. This recognition restored del Río's place in chemical history and highlighted the importance of thorough analytical confirmation.

Pure Metal Isolation

Henry Roscoe produced the first pure vanadium metal in 1867 through hydrogen reduction of vanadium dichloride, though his product contained significant impurities. John Wesley Marden and Malcolm Rich achieved high-purity vanadium metal in 1927 using calcium reduction of vanadium pentoxide, enabling systematic study of vanadium's remarkable properties.

Discovered by: <div class="discovery-content"> <h3>The Element Found Twice</h3> <p>Vanadium's discovery involved multiple researchers, false starts, and eventual confirmation through advanced analytical techniques, illustrating the challenges of identifying new elements in complex mineral matrices.</p> <h4>Del Río's Mexican Discovery</h4> <p><strong>Andrés Manuel del Río</strong> (1764-1849), a Spanish-Mexican mineralogist, made the first vanadium discovery in 1801 while analyzing lead ores from Zimapán, Mexico. Del Río observed that his mineral samples produced colorful solutions - red, yellow, green, and blue - depending on chemical treatment conditions.</p> <p>Del Río initially named his discovery <strong>"panchromium"</strong> (meaning "all colors") due to its multicolored compounds. Later, noticing the red color of certain solutions, he renamed it <strong>"erythronium"</strong> (from Greek "erythros" meaning red).</p> <h4>The Tragic Doubt</h4> <p>When del Río sent samples to European chemists for confirmation, they incorrectly identified his element as impure chromium. This misidentification caused del Río to doubt his own discovery, and he sadly retracted his claim. The scientific community accepted this incorrect assessment, robbing del Río of deserved recognition for 30 years.</p> <h4>Sefström's Rediscovery</h4> <p><strong>Nils Gabriel Sefström</strong> (1787-1845), a Swedish chemist working at the Falun iron works, rediscovered vanadium in 1830 while analyzing iron ore slags. His systematic chemical analysis revealed an unknown element that produced the same colorful compounds del Río had observed decades earlier.</p> <p>Sefström named the element <strong>"vanadium"</strong> after <strong>Vanadis</strong>, the Norse goddess of beauty, love, and fertility (also known as Freyja). This name reflected the beautiful colors of vanadium compounds, from deep reds to brilliant yellows and greens.</p> <h4>Historical Justice</h4> <p>When Sefström's work became known, del Río's priority was finally recognized. The scientific community acknowledged that del Río had indeed discovered vanadium first, though Sefström's name remained standard. This recognition restored del Río's place in chemical history and highlighted the importance of thorough analytical confirmation.</p> <h4>Pure Metal Isolation</h4> <p><strong>Henry Roscoe</strong> produced the first pure vanadium metal in 1867 through hydrogen reduction of vanadium dichloride, though his product contained significant impurities. <strong>John Wesley Marden and Malcolm Rich</strong> achieved high-purity vanadium metal in 1927 using calcium reduction of vanadium pentoxide, enabling systematic study of vanadium's remarkable properties.</p> </div>

Year of Discovery: 1801

Vanadium: Forged in Stellar Cores

Vanadium's cosmic creation occurs through silicon burning processes in massive stars, where temperatures exceed 3 billion Kelvin enable nuclear reactions that build elements heavier than iron. Neutron capture events during supernova explosions further contribute to Vanadium isotope formation, dispersing this transition metal throughout the universe as stellar debris forms new planetary systems.

Terrestrial Distribution

Earth's crust contains approximately 120 parts per million Vanadium, ranking it 22nd in elemental abundance. This moderate concentration reflects Vanadium's geochemical behavior, where it substitutes for iron and aluminum in rock-forming minerals rather than forming distinct Vanadium minerals in most geological environments.

Primary Vanadium Sources

Magnetite iron ores provide 71% of global Vanadium production, particularly from layered mafic intrusions where Vanadium concentrates through magmatic processes. South Africa's Bushveld Complex contains the world's largest Vanadium resources, with magnetite layers containing 1-2% V₂O₅ formed through fractional crystallization of Vanadium-rich magmas.

Petroleum and oil sands represent unconventional Vanadium sources, where organic compounds concentrated Vanadium from ancient seawater. Venezuelan heavy oils contain up to 1,400 ppm Vanadium, recovered as Vanadium pentoxide from petroleum processing residues.

Unique Mineral Occurrences

Carnotite (K₂(UO₂)₂(VO₄)₂·3H₂O) occurs in sandstone uranium deposits of the Colorado Plateau, providing both uranium and Vanadium through solution mining operations. Vanadinite (Pb₅(VO₄)₃Cl) forms spectacular red crystals in oxidized lead deposits but contributes minimally to commercial Vanadium production.

Global Resources and Production

China dominates Vanadium production (57% globally) from steel slag processing and stone coal deposits unique to Shaanxi and Hunan provinces. Russia (17%) and South Africa (16%) follow, with South Africa holding 35% of global Vanadium reserves in the Bushveld Complex.

Secondary Recovery

Steel production generates Vanadium-rich slags and fly ash containing 15-25% V₂O₅, recovered through roasting and leaching processes. This secondary production accounts for 22% of global Vanadium supply, demonstrating effective resource recycling from industrial waste streams.

General Safety: Vanadium should be handled with standard laboratory safety precautions including protective equipment and proper ventilation.

Vanadium Safety: Moderate Hazard Awareness

Vanadium compounds exhibit moderate

toxicity requiring appropriate safety measures, particularly for dust inhalation and certain Vanadium salts.
Understanding exposure routes and implementing proper controls ensures safe handling in industrial applications.

Health Effects

Vanadium pentoxide (V₂O₅) represents the primary occupational concern, causing respiratory irritation, coughing, and potential lung damage with prolonged exposure. Acute symptoms include green tongue discoloration, metallic taste, and gastrointestinal irritation. Chronic exposure may lead to bronchitis and reduced lung function, though effects are generally reversible with exposure cessation.

Occupational Exposure Limits

  • OSHA PEL: 0.5 mg/m³ (8-hour TWA) for Vanadium pentoxide dust and fume
  • NIOSH REL: 1 mg/m³ (15-minute ceiling) for Vanadium compounds
  • ACGIH TLV: 0.05 mg/m³ (8-hour TWA) for Vanadium pentoxide
  • Ferrovanadium dust: 1 mg/m³ (respirable fraction)

Routes of Exposure

Inhalation poses the greatest risk during steel production, catalyst handling, and Vanadium processing operations. Dermal contact with Vanadium compounds can cause skin irritation and potential absorption. Ingestion risks occur through contaminated food or poor hygiene practices in workplace settings.

Personal Protective Equipment

  • Respiratory Protection: N95 minimum for dust; P100 for fine particles; supplied-air for high concentrations
  • Skin Protection: Nitrile gloves resistant to Vanadium compounds; protective clothing for dust exposure
  • Eye Protection: Safety glasses with side shields; goggles for grinding or crushing operations
  • Hygiene Facilities: Emergency eyewash stations; separate change areas; shower facilities recommended

Engineering Controls

Local exhaust ventilation at dust generation points effectively controls airborne Vanadium exposure. Enclosed processes for Vanadium compound handling minimize worker contact. Wet suppression during crushing and grinding operations reduces dust generation significantly.

Emergency Procedures

Inhalation: Remove from exposure immediately; provide fresh air and oxygen if needed; seek medical attention for respiratory symptoms. Skin contact: Flush with water for 15 minutes; remove contaminated clothing; seek medical attention for persistent irritation. Eye contact: Irrigate with clean water for 15 minutes; seek immediate medical attention. Ingestion: Rinse mouth with water; do not induce vomiting; seek medical attention immediately.

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